In order to study the explosion law of hydrogen and air premixed gas in the
pipe-line, the author proposes an analysis of the propagation
characteristics of hydrogen in the shock tube in the integrated energy
system. Use a square transparent pipe with a size of 150 mm?150 mm?1000 mm,
the shape of the explosion flame, the propagation velocity and the pressure
change with the hydrogen volume fraction from 10-40% were observed through
experiments. Flame spread and pressure were recorded and measured by high
speed cameras and pressure sensors, respectively. Experimental results show
that the explosion flame characteristics and pressure changes are greatly
affected by the hydrogen volume fraction. With the increase of hydrogen
volume fraction, the maximum velocity and maximum value of flame in pipe
increase significantly. The maximum flame propagation speed is increased
from 18.3-304.2 m/s, and the propagation time is shortened from 123.5-10.5
ms. The pressure peak increased from 2.95-34.06 kPa. The analysis of the
propagating characteristics of the hydrogen flame in the shock tube in the
integrated energy system can well reflect the intensity of the hydrogen
explosion. Do not use abbreviations and acronyms in the abstract.